Tuesday, December 21, 2010

藥物配方 - 營養補充劑-腎Formulation and Drug Bioavailability-Kidney

藥物配方 - 營養補充劑 - Formulation and Drug Bioavailability

Please always check with your healthcare providers before taking on any dietary supplements. Also, try to do it under medical supervision. Our body condition may influence the absorption and elimination of various substances. So, please watch out for dosing and drug interactions.

Hi,

Drug fornulation is important in the pharmaceutical product development. When we read scientific publications, we have to pay attention at the dosage and form of the pharmaceutical forms. Immediate-release (IR) formulation can have very different bioavailability from those of controlled-release (CR)/ extended-release (ER) / timed-release or even delayed release (DR). So, please do not substitute one product for another if they are not tested of equivalent bioavailability and bioequivalency.  Also, please do not split tablets that are used for CR/ER/TR/DR. They are supposed to take in whole form for their various target drug release profiles.

Another thing is about excipients (inactive ingredients) that are present in formulations. Sometimes, they may interfere with the absorption of main active ingredients.  For example, a paper suggests the presence of vitamin E in Coenzyme Q10 may be less beneficial than expected. So, we may better look at product label more carefully when shopping for our products. More may not be merrier.

-J.

Ref:

控制磷,- 腎 (Phosphorus and kidney dialysis)

Please always check with your healthcare providers before taking on any dietary supplements. Also, try to do it under medical supervision. Our body condition may influence the absorption and elimination of various substances. So, please watch out for dosing and drug interactions.

Hi,

I am told that phosphorus control is important for hemodialysis patients. If the phosphorus level is too high, skin itching and other side-effects will kick in. Calcium supplements and non-calcium phosphorus binders (such as Renagel - sevelamer is used). The latter can be costly.

Here are some links to a cheaper dietary supplement proposed as an alternate phosphorus binder. Again, these are preliminary studies and they do not mean to substitute for your prescription. We should always discuss any medication and dietary supplement with our medical professional. Also, formulation differences may have important effect on safety, toxicity and efficacy profiles.

In this case, the new alternative (niacin) can have side effect of flushing. It is advised to take a low dose of aspirin to reduce flushing. However, aspirin can interfere with some drugs like anti-clotting drugs of warfarin. It may be contraindicted in some cases.   Secondly, the use of immediate-release and extended-release drug formulation should be carefully investigated for.

-J.

Ref:


控制血壓,- 腎 (Blood pressure control and kidney dialysis)

Hi,

  I have copied some links to some articles that suggest some use of non-drug supplements for blood pressure control. Pls be aware that the publications are based on limited experimental studies and may not apply for human consumptions.

Please always check with your healthcare providers before taking on any dietary supplements. Also, try to do it under medical supervision. Our body condition may influence the absorption and elimination of various substances. So, please watch out for dosing and drug interactions.

 Pls feel free to let me know what you think of these.

-Jamie.



Purpose of this blog - Blog的目的

Hi,

   I am a science major and am working in the biotech sector. I create this blog to share some info on the use of dietary supplement, esp for kidney dialysis patients. I have known people on dialysis that need help to control their blood pressure and other electrolyte levels.

   Hopefully the info with the scientific publication can help.

-- Jamie 


Disclaimer:

Please note:
1. Do consult your health care providers before taking any dietary supplements.
2. Information provided is only for reference. Please do review them carefully to apply to your case.
3. All dietary supplements mentioned are not meant to be replaced by medications. They are not intended to diagnose, treat, cure or prevent any disease.
4. All statements and products in this website are not evaluated by FDA.
-----


Blog的目的

我在生物科技區工作。 我創造這個網上日誌是希望能分享營養補充劑和腎臟透析病人的認識.我認識的人有需要幫助控制他們的血压和其他電解質水平。

希望這個blog內的科學文章信息能對您有幫助。

 - Jamie

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請注意:
1。攝入任何營養補充劑之前,請諮詢您的醫生
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3。本網站所提到的所有營養補充劑並不意味著取代藥物。它們不能用於診斷,治療,治愈或預防任何疾病。
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